With a price difference of 24.4 cents between regular and premium gasoline on national average, many people are left wondering if they can save at the pump by filling up their gas tank with ...

Q. I own a 2006 Ford Escape V-6 that has suddenly developed an engine pinging noise. I have switched brands of gasoline; this hasn’t helped. The owner’s manual specifies using 87 octane, but when I ...

The demon of engine knock is something an owner of a traditional high-performance Pontiac knows all too well. An engine designed when 102-octane high test was at almost every fuel station in the ...

I have a 1985 Camry that has been a terrific car for me thus far. It's "pinged" for as long as I can remember, and a co-worker suggested that I should try a tank of higher-octane gas. Well this ...

Dear Doctor: I own a 2005 Ford Freestar that I purchased with 11,000 miles, and it has always run fine. I recently took it on a 700-mile trip. At highway speeds the engine developed an engine ping. I ...

Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced power, and potential engine damage. Key causes include low-octane fuel, ...